forked from MapComplete/MapComplete
99 lines
3.8 KiB
TypeScript
99 lines
3.8 KiB
TypeScript
import { Store, UIEventSource } from "../UIEventSource"
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import GeocodingProvider, { GeocodeResult, GeocodingOptions } from "./GeocodingProvider"
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import { OsmId } from "../../Models/OsmFeature"
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import { Utils } from "../../Utils"
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import OsmObjectDownloader from "../Osm/OsmObjectDownloader"
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export default class OpenStreetMapIdSearch implements GeocodingProvider {
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private static readonly regex =
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/((https?:\/\/)?(www.)?(osm|openstreetmap).org\/)?(n|node|w|way|r|relation)[/ ]?([0-9]+)/
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private static readonly types: Readonly<Record<string, "node" | "way" | "relation">> = {
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n: "node",
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w: "way",
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r: "relation",
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}
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private readonly _osmObjectDownloader: OsmObjectDownloader
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constructor(osmObjectDownloader: OsmObjectDownloader) {
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this._osmObjectDownloader = osmObjectDownloader
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}
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/**
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*
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* OpenStreetMapIdSearch.extractId("osm.org/node/42") // => "node/42"
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* OpenStreetMapIdSearch.extractId("https://openstreetmap.org/node/42#map=19/51.204245/3.212731") // => "node/42"
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* OpenStreetMapIdSearch.extractId("node/42") // => "node/42"
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* OpenStreetMapIdSearch.extractId("way/42") // => "way/42"
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* OpenStreetMapIdSearch.extractId("n123456789") // => "node/123456789"
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* OpenStreetMapIdSearch.extractId("node123456789") // => "node/123456789"
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* OpenStreetMapIdSearch.extractId("node 123456789") // => "node/123456789"
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* OpenStreetMapIdSearch.extractId("w123456789") // => "way/123456789"
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* OpenStreetMapIdSearch.extractId("way123456789") // => "way/123456789"
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* OpenStreetMapIdSearch.extractId("way 123456789") // => "way/123456789"
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* OpenStreetMapIdSearch.extractId("https://www.openstreetmap.org/node/5212733638") // => "node/5212733638"
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*/
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public static extractId(query: string): OsmId | undefined {
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const match = query.match(OpenStreetMapIdSearch.regex)
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if (match) {
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let type = match.at(-2)
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const id = match.at(-1)
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if (type.length === 1) {
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type = OpenStreetMapIdSearch.types[type]
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}
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return <OsmId>(type + "/" + id)
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}
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return undefined
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}
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private async getInfoAbout(id: OsmId): Promise<GeocodeResult> {
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const [osm_type, osm_id] = id.split("/")
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const obj = await this._osmObjectDownloader.DownloadObjectAsync(id)
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if (obj === "deleted") {
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return {
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display_name: id + " was deleted",
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category: "coordinate",
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osm_type: <"node" | "way" | "relation">osm_type,
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osm_id,
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lat: 0,
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lon: 0,
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source: "osmid",
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}
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}
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const [lat, lon] = obj.centerpoint()
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return {
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lat,
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lon,
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display_name:
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obj.tags.name ?? obj.tags.alt_name ?? obj.tags.local_name ?? obj.tags.ref ?? id,
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description: osm_type,
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osm_type: <"node" | "way" | "relation">osm_type,
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osm_id,
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source: "osmid",
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}
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}
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async search(query: string, _: GeocodingOptions): Promise<GeocodeResult[]> {
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if (!isNaN(Number(query))) {
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const n = Number(query)
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return Utils.NoNullInplace(
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await Promise.all([
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this.getInfoAbout(`node/${n}`).catch(() => undefined),
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this.getInfoAbout(`way/${n}`).catch(() => undefined),
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this.getInfoAbout(`relation/${n}`).catch(() => undefined),
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])
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)
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}
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const id = OpenStreetMapIdSearch.extractId(query)
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if (!id) {
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return []
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}
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return [await this.getInfoAbout(id)]
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}
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suggest?(query: string, options?: GeocodingOptions): Store<GeocodeResult[]> {
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return UIEventSource.FromPromise(this.search(query, options))
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}
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}
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